Hybrid materials in the removal of diclofenac sodium from aqueous solutions: Batch and column studies

Tiwari, Diwakar; Lalhriatpuia, C.; Lee, Seung‐Mok

doi:10.1016/j.jiec.2015.05.018

Cited by 51 publications

(11 citation statements)

References 60 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Phan et al [63] mentioned that very hydrophobic compounds with kow > 3 are generally removed from the aqueous phase via sorption to biosolids. The kow values of the selected pharmaceuticals (DCF = 0.70, AMX = 0.87, CBZ = 2.45) indicate that they In the electrocoagulation process as previously reported, the removal mechanisms are adsorption onto Al(OH) 3 flocs, charge neutralization and electro-flotation [62]. The pH of the solution is considered to be a key parameter affecting the elimination of pharmaceuticals, however, in this study, the initial pH (pH = 7-8) of the solution was not adjusted to simulate the typical pH of municipal wastewater.…”

Section: Current Densitysupporting

confidence: 74%

“…This can be explained by the interactions between aluminium and phosphate ions inside the reactor which resulted in the significant removal of the latter from the solution [57]. Aside from adsorption onto Al(OH) 3 coagulants, excess aluminium ions (Al 3+ ) react with phosphorous ions to form (AlOH) 3 (PO 4 ) 2 (s) and AlPO 4 (s) that precipitate out in the bioreactor according to the following reactions (Equations (7) and (8)) [58]:…”

Section: Removal Of Conventional Pollutantsmentioning

confidence: 99%

“…Among these pharmaceuticals, diclofenac (DCF), carbamazepine (CBZ) and amoxicillin (AMX) are three of the most frequently detected in the aquatic environment [1,2]. DCF is a nonsteroidal anti-inflammatory drug (NSAID) usually administered to alleviate degenerative joint diseases such as rheumatoid arthritis, osteoarthritis, non-articular rheumatism and sport injuries [3]. It is also used to reduce menstrual pain and as veterinary medicine.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Removal of Pharmaceuticals from Wastewater by Intermittent Electrocoagulation

Ensano

Borea

Naddeo

et al. 2017

Water

View full text Add to dashboard Cite

Abstract:The continuous release of emerging contaminants (ECs) in the aquatic environment, as a result of the inadequate removal by conventional treatment methods, has prompted research to explore viable solutions to this rising global problem. One promising alternative is the use of electrochemical processes since they represent a simple and highly efficient technology with less footprint. In this paper, the feasibility of treating ECs (i.e., pharmaceuticals) using an intermittent electrocoagulation process, a known electrochemical technology, has been investigated. Diclofenac (DCF), carbamazepine (CBZ) and amoxicillin (AMX) were chosen as being representative of highly consumed drugs that are frequently detected in our water resources and were added in synthetic municipal wastewater. The removal efficiencies of both individual and combined pharmaceuticals were determined under different experimental conditions: hydraulic retention time (HRT) (6, 19 and 38 h), initial concentration (0.01, 4 and 10 mg/L) and intermittent application (5 min ON/20 min OFF) of current density (0.5, 1.15 and 1.8 mA/cm 2 ). Results have shown that these parameters have significant effects on pharmaceutical degradation. Maximum removals (DCF = 90%, CBZ = 70% and AMX = 77%) were obtained at a current density of 0.5 mA/cm 2 , an initial concentration of 10 mg/L and HRT of 38 h.

show abstract

Section: Current Densitysupporting

confidence: 74%

Section: Removal Of Conventional Pollutantsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Removal of Pharmaceuticals from Wastewater by Intermittent Electrocoagulation

Ensano

Borea

Naddeo

et al. 2017

Water

View full text Add to dashboard Cite

show abstract

“…In order to compare these low-cost biosorbents with other reported materials, the maximum uptake for DCF and TMP were compared to data from other studies (Table S5.). Excluding the important synthesis costs involved, uptake of DCF here by biochar was not as efficient as for activated carbons (Bhadra et al, 2017, Bhadra et al, 2016, Sotelo et al, 2014, grape bagasse (Antunes et al, 2012) and organoclays (De Oliveira et al, 2017); but was more efficient than for molecularly imprinted polymer (Madikizela and Chimuka, 2016), sericite hybrid materials (Tiwari et al, 2015), silica-based materials (Bui andChoi, 2009, Suriyanon et al, 2013) and even some carbon nanotubes (Czech and Oleszczuk, 2016). TMP uptake by macro-algae was higher than for a powdered activated carbon (Bonvin et al, 2016), biosorbents derived from sewage sludge (Nielsen and Bandosz, 2016) and montmorillonite (Vidal et al, 2015); but lower than for certain types of activated carbon (Kim et al, 2010, Liu et al, 2012.…”

Section: Isothermsmentioning

confidence: 97%

Utilizing low-cost natural waste for the removal of pharmaceuticals from water: Mechanisms, isotherms and kinetics at low concentrations

Taggart

McKenzie

et al. 2019

Journal of Cleaner Production

View full text Add to dashboard Cite

The use of abundant natural wastes as environmentally friendly products promotes a circular green economy and cleaner production. The potential use of natural waste materials without additional processing for the removal of priority pharmaceuticals from water was investigated. Here, the performance of selected low-cost biosorbents (biochar, macro-algae and wood chippings) was evaluated using two extensively prescribed model pharmaceuticals: diclofenac (DCF) and trimethoprim (TMP). The physicochemical properties of the biosorbents were examined (to shed light on likely biosorption mechanisms) using Brunauer-Emmett-Teller (BET) measurements, scanning electron microscopy (SEM), zero point of charge (pH zpc) measurements and Fourier transform infrared spectroscopy (FTIR). Experimental data from kinetic studies fitted a pseudo-second order model, and multiple diffusion steps limited the mass transfer of analytes. Intra-partile diffusion was the rate limiting step for biochar, while macro-algae and wood chippings were limited (mainly) by adsorptive attachment. The equilibrium data for most of the studied systems best fitted a Langmuir model, while the Freundlich model provided a better fit for TMP with wood chippings. At µg•L-1 initial pharmaceutical loading levels, the maximum biosorption capacity for DCF was attained with biochar (7.25×10 3 µg•g-1), while macro-algae performed best for TMP (7.14×10 4 µg•g-1). Both chemical and physical interactions were likely responsible for the biosorption of pharmaceuticals. High removal efficiencies were achieved at the low initial loadings studied, indicating the potential application of those sustainable low-cost biosorbents at low (environmentally relevant) pharmaceutical concentrations.

show abstract

“…(Anggraini and Ekawati, 2020) . Yearly intake of diclofenac is 940 tons universally with a mentioned dose of 100 mg/day (Tiwari et al, 2015). Recently, there is a new combination consisting of DicNa, or ternary mixture combined above with cyanocobalamin (vitamin B12) have been released in the markets (Kleemann et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Q-Absorbance Ratio, Derivative Spectrophotometric and H-Point Standard Addition Methods for Simultaneous Determination of Pridinol Mesylate, and Diclofenac Sodium in Pharmaceutical Formulation.

Qadir¹,

Qader²

2021

ZJPAS

View full text Add to dashboard Cite

Three methods for simultaneous estimation of diclofenac sodium and pridinol mesylate have been developed. First method is the application of the Q-analysis (absorbance ratio) method, the wavelengths selected were 265nm (isosbestic point) and 285nm (λ max of diclofenac sodium) with 258nm (λ max of pridinol mesylate). The linearity ranges for diclofenac sodium and pridinol mesylate were 8-64 μg/ml and 14-56 μg/ml, respectively. The second technique is based on the second derivative spectrophotometric method at zero crossing wavelengths. The linearity ranges for diclofenac sodium and pridinol mesylate were (4.0-40.0) μg/ml and (4.0-30.0) μg/ml, respectively. The third method is the H-Point Standard addition method (HPSAM) depending upon the zero and second-order derivative signals for diclofenac sodium and pridinol mesylate were applied pairs of wavelengths, 250.37and 266.34 nm; with 224.18 and 235.10 nm, respectively. The accuracy of the methods was assessed by recovery studies and was found to be 100.01 ± 0.63 and 100.64 ± 0.36 for the qabsorbance ratio method, 100.78 ±0.221 and 101.98 ±0.11 for the second derivative zero-crossing method, respectively. While for H-Point Standard addition method are 98.0±1.71, and 100.4±0.545 for zero-order HPSAM , 99.25 ±0.753, and 100.12 ± 0.35 for second derivative HPSAM for diclofenac sodium and pridinol mesylate respectively Methods were confirmed according to the ICH guidelines; accuracy, precision, and repeatability were found to be within acceptable limits with no interferences. Finally, statistical comparisons between the proposed methods and the reported methods concerning to accuracy and precision show that no significant difference was found using Student's t-test, F-test, and one-way ANOVA.

show abstract

Hybrid materials in the removal of diclofenac sodium from aqueous solutions: Batch and column studies

Cited by 51 publications

References 60 publications

Removal of Pharmaceuticals from Wastewater by Intermittent Electrocoagulation

Removal of Pharmaceuticals from Wastewater by Intermittent Electrocoagulation

Utilizing low-cost natural waste for the removal of pharmaceuticals from water: Mechanisms, isotherms and kinetics at low concentrations

Q-Absorbance Ratio, Derivative Spectrophotometric and H-Point Standard Addition Methods for Simultaneous Determination of Pridinol Mesylate, and Diclofenac Sodium in Pharmaceutical Formulation.

Contact Info

Product

Resources

About